Magnifying device.



P. HARRISON. MAGNIFYING DEVICE.

APPLICATION FILED APB.. 27, 1912.

1,059,868. Patented Apr. 22, 1913.

umn- PHILIP HARRISON, OF NEW YORK, N. Y.

MAGNIFYING DEVICE.

rosa-,86s.

Specification of Letters Patent. Patemnld pl. 22,1913. Y

Application -inea April 27, v1912. serial No? 693,684.

magnifying device, particularly adaptable for use 1n connection withrazorsand j ewels' for detecting imperfections thereon.

VThelinvention embodies, among other features, a supporting memberparticularly adapted to support a razor blade within the eld of amagnifying glass, whereby, upon gazing through the glass, anydiscrepancies in the-cutting edge of the razor'blade' can bereadily-detected, the device being also adapted for use in examiningjewels for the purpose of finding imperfections thereon prior togrinding or cutting the jewels or setting the same in an artistic frame.

In the further disclosure of the invention reference is to be had to theaccompanying drawings constituting a part of this`speciication in whichsimilar characters of eference denote corresponding parts in a' `theviews, and in which:

' Figure 1 is a front elevation of the device; Fig. 2 is an end, view;Fig. 3'is a plan view; and Fig. 4 is a vertical sectional view Y takenon the line 4-4 in j'Fig 1. f

Referring more particularly to the views, use is made of a main bar (10provided on one side thereof with a longitudinally extending dove-tailflange l1, a bearing plate 12` being secured to the main bar 10 at acentral portion thereof and having mounted to slide therein a verticallyextending holder 13, terminating at the lower end in a handle 14 andprovided at the upper end with a reduced portion 15, on which ismounted' a collar 16 provided with a horizontally extending shank 17connected to a circular frame 18 in which is mounted a magnifying glass19, a thumb screw 2O being mounted to extend through the bearing plate12 to engage the .holder 13 for the purpose of securing the holderinrigid position relatively tothe-main bar 10.

A bracket 21 comprising a head 22 provided with a dove-tail slot 23 is'mounted to slide horizontally on the main lbar 10, the dove-tailflange' llyof the main bar being received in the dove-tail slot 23 ofthe head 22 of the bracket, a bar 24 being extended horizontally fromthe head 22 and then bent vertically to form an upright 25, the barbeing then bent horizontally and laterally and having mounted to swingon the free end thereof a clamping member 26 comprising a stationarygripping tooth 27 having mounted to extend vertically therefrom athreaded pin 28 on which is mounted to slide a gripping tooth 29, athumb screw 30 being threadedly mounted on the pin 28 and adapted toengage the movable gripping tooth 29 to clamp an article betweenthestationary gripping tooth 27 and the movable gripping tooth 29, thementioned gripping teeth being adapted to extend toward the main bar andarranged so that when the bracket 21 is slid on the main bar 10, the'article held between the gripping teeth' l27 and 29 can be broughtwithinthe eld of the magnifying glass 19, adjust-ably mount.

ed on the main bar 10, as mentioned heretofore., Y

- As mentioned above, my device is particularly adapted for use inconnection with razors for the purpose of determining any imperfectionsin the cutting edges "thereof and in the use of my device the razorblade is securely clamped between the gripping tooth 27 and the grippingtooth 29, after which the bracket 21 is advanced alon the main bar 10until the'cutting edge o? the razor blade will lie within the plane ofthe magnifying glass 19 and immediately beneath the Same, the holder 13being adjustable on the main bar 10 for the purpose of obtaining aproper focus of the magnifying glass so that when the operatorgazesxthrough` the magnifying glass from above, the cutting edge of therazor blade willy be clearly outlined beneath thema ifying glass, in anenlarged form, thus c early disclosing any imperfections or rag ednessin the cutting edge of the blade. y device is also adapted for use inexamining jewels for the purpose of determining any imperfectionstherein and it will be readily understood that instead of clamping thejewel between the gripping tooth 27 and the gripping tooth 29, *thejewel can be placed upon a suitable plate having an edge thereofsecurely clamped between the gripping teeth 27 andV a lmanner 'that theclamping Vmember will Y normally bind and remain in stationary positionregardless of the angle to which the clamping member is swung.

' bracket will not be brought Within the field of the magnifying glass19 when it is desired to examine an article securely held in theclamping member 26, it being readily understood that if ay portion ofthe bracket were disposed beneath the clamping member when an article isclamped therein and the article is within the field of the magnifyingglass, the magnifying portion of the bracket beneath the magnifyingglass would act as a dark background beneath the article in the clampingmember, thus destroying the contrast of vision that is observed when theclamping member is offset as mentioned, a white background beingpreferably arranged beneath' my devicel when an article of a dark coloris mounted in the clamping member in order that the imperfections in theedges of the article will be readily apparent to the observer.

Having thus described my invention, I claim: A j

l. In a device 'of the class described, the combination with a main bar,of a bearing plate thereon, a holder mounted to slide on the saidbearing plate, the said holder ter- `ininat-ing at one end in a handleand at the other end in a reduced portion, a thumb screw mounted toextend through the said bearing plate and engage the said holder toretain it in ri 'd position relatively to the main bar, a co lar mountedon the reduced portion of the said holder, a shank formed with the saidcollar, a frame extended from Lacasse the said shank, a magnifying glassmounted in the said frame, a dove-tail flange formed longitudinally onthe said main bar, a

bracket mounted to slide on the said flange, and a clampin' membermounted on the said bracket and slidable therewith to lie within tlefield of `view of the said magnifying ass. g 2. In a device of the classdescribed, the combination with a main bar, of a holder adjustablymounted thereon, a magnifying glass mounted on the said holder, abracket mounted to slide on the said main bar, and a clamping barmounted on the said bracket and .movable therewith to lie within thefield of view of the said magnifying glass.

3 In a device of the class described, the

lcombination with a main bar, of a holder adjustably mounted thereon, amagnifying glass mounted on the said holder, a bracket slidably mountedon the said main' bar, and

a clamping member mounted to swing on the y said bracket and movabletherewith to lie within the field of view of the said magnifying glass.

4. In a device of the class described, the combination with a main bar,of a holder adjustably mounted thereon, a magnifying glass mounted onthe said holder, a bracket mounted to slide on the main bar, a clamp-Aing member mounted to swing on the said bracket and comprising aplurality of gripping teeth, and means for adjusting one of.

the said teeth relatively to the other tooth. In testimony whereof Iaffix my signature in presence of two witnesses.

PHILIP HvARRisoN.

Witnesses:

LILLIAN NAOMI HANsoN, EDWARD A.. HUTCHINsoN.

